Mounting for weft parters



Oct. 11, 1932. 0, v, PAYNE 1,881,924

MOUNTING FOR WEFT PARTERS Filed March 16 1931 FIG. 2

60 IN l/ENTDR 5 U5 CAFI l/PA YNE (03 \H 4 5 L M A TTDRNEYE Patented Oct.11, 1932 UNETED STATES PATENT OFIQE OSCAR V. PAYNE, OF WORCESTER,MASSACHUSETTS, ASSIGNOR T'O CROMPTON & KNOWLES LOOM WORKS, F VTORCESTER,MASSACHUSETTS, A CORPORATION MASSACHUSETTS MOUNTING FOR WEFT PARTERSApplication filed March 16, 1931.

This invention relates to improvements in thread cutters for weftreplenishing looms and it is the general object of the invention toprovide an improved form of support which will permit ready adjustmentof the cutter with respect to the loom shuttle.

Multicolor weft replenishing mechanisms ordinarily comprise in theirconstruction inner and outer plates between which the bobbins extends,and these plates are held in position by tie rods which aresubstantially parallel to the lay. It is an important object of mypresent invention to provide a support for a thread cutting element mov-5 able along these tie rods but capable of being held in fixed relationwith respect to them in any one of a plurality of positions.

It is a further object of my present invention to provide a bracket orthe like which 0 may be applied to existing multicolor weft 35 setforth,

Fig. 1 is a front view of a portion of a loom with my invention appliedthereto,

Fig. 2 is a view looking in the direction of arrows 2-2 of Fig. 1, and

Fig. 3 is a view of a portion of the structure shown in Fig. 1 on'anenlarged scale.

Referring to the drawing, I have shown a magazine M of the multicolortype and inner and outer plates 10 and 11, respectively, which are heldin spaced relation by tie rods two of which are shown herein at 12 and13, respectively. The magazine is supported by a stand 14 mounted on theloom frame 15.

A transferrer arm 16 is pivoted about a fixed stud 17 carried by themagazine and Serial No. 522,819.

movable downwardly from its normally raised position to effect transfer.An arm 18 extends downwardly from the transferrer for a purpose to bedescribed.

The shuttle S is provided with a metallic plate which is adjacent theshuttle delivery eye 31 and located to extend above and below ahorizontal line extending through the delivery eye.

The parter lever 35 is provided with a cutting blade 36 pivoted theretoand having a rear sharpened edge 37 to engage the plate 30 on theshuttle. The lever 35 also has an arm 38 which lies behind thetransferrer carried arm 18. A compression spring 39 acts on the lever insuch a way as to tend normally to move the cutter blade 36 rearwardly ortoward the shuttle.

The matter thus far described forms no part of my present invention, themagazine being substantially as set forthin prior Patent No. 1,303,748.I i

In carrying my present invention into effect I provide a supportingbracket 40 having upper and lower split bearings 41 and 42,respectively, which may coact with caps 43 held in place by screws 44tapped into the bracket. These split bearings are fitted around theupper and lower tie rods, respectively, and serve to hold the bracket infixed position, but capable of longitudinal adjustment along the rods ina direction parallel to the shuttle and the lay L.

The lower end of the bracket is formed with a vertical hub 45 in whichis adjustably secured; for vertical movement a-stud 46. The lower end ofthe latter is formed with the head47 on which'the lever 35 rests and .acollar 48 adjustably secured by setscrew 49 is mounted for angularadjustment around the stud and is also provided with a pin 50 to engageone end of the spring 39; The collar prevents upward displacement of thelever 35. By adjusting the position of the collar 48 it is possible tovary the pressure exerted by the spring. By the matter thus fardescribed it is possible to adjust the axis of the lever in a directionparallel to the lay and also to raise or lower the lever with respect tothe shuttle by means of the set screw 51 which holds the stud inposition.

The lay L is provided with a shuttle box back which defines a portion ofthe shuttle box that receives the shuttle. The front part of the box isdefined by a binder 61 which is formed substantially as shown in Fig. 1and swings about a pivot 62 fixed with respect to the lay. The binderhas an opening or slot '63 adjacentits pivot toafford means for thecutter 36 to reach the plate 30.

In operation, when sufficient weft for continued weaving is present inthe shuttle the lay will move forwardly on each beat of the loom, butthe cutter blade 36 will be held forwardly with respect to the shuttleso as not to engage the plate 30, this result being brought about by thefact that finger 18 of the transferrer arm engages arm 38 of the lever35. During the forward movement of the lay the cutter will move throughslot 63 of the binder. When a transfer occurs the arm 18 will moveforwardly and spring 39 will move the cutter 36 rearwardly. Duringforward movement of the lay the plate 30 of the shuttle will engage thecutting edge 37 and sever the thread which at this time extends from thedelivery eye back along the shuttle binder toward the adjacent selvage.The shuttle S may be provided with a groove in which the weft may belocated. A thread clamp not shown but of any convenient form may belocated between the shuttle It and the adjacent selvag e to hold theweft which is severed at the plate 30'and prevent the same from beingdrawn into the shed on the next pick of the loom.

From the foregoing it will be seen that I have provideda convenient andsimple form of support for the weft cutter blade 36 comprising structurewhich is movable along the tie rod of'the magazine to effectlongitudinal adjustment of the cutting edge 37 with respect to the plateon the shuttle. By means of this mode of support I may place the cutteredge 37 correctly with respect to the-plate 30 of the boxed shuttle. Thecaps 43 are on opposite sides of the tie rods to relieve them of thestrains to which the cutter is subject.

Having thus described my invention it will be seen'that changes andmodifications may be made therein by those skilled in the art withoutdeparting from the spirit and scope of the invention and I do not wishto be limited to the details herein disclosed, but what I-claim is:

1. In a weft replenishing loom having a lay and a shuttle with a weftparter element, a magazine, a fixed supporting member extendingsubstantially parallel to the lay and forming part of the magazine, acutter element to'cooperate with the element carried by the shuttle asthe latter is moved by the lay,

and a support for the second named element mounted on said member andmovable therealong to assume any one of a plurality of positionsrelatively to the element on the shuttle.

2. In a weft replenishing loom having a lay and a shuttle with a weftparter element,

a magazine, a second cutter element to coact with the element carried bythe shuttle as the lay moves, and fixed means to support the secondelement at a point above the lay and on the magazine.

3. In aweft replenishing loom having a lay and a shuttle with a weftparter element, a magazine, a tie rod forming part of the magazine, abracket held in fixed position with respect to the tie rod, and a secondcutter element movably mounted on the bracket to coact with the elementon the shuttle as the latter moves with the lay.

4. In a weft replenishing loom having a lay and a shuttle with a weftparter element, a magazine, a tie rod forming part of the magazine, abracket held in fixed position with respect to the tie rod, and a secondcutter element movably mounted on the bracket to coact with the e'iementon the shuttle as the latter moves with the lay, said bracket beingmovable to assume any one of a plurality of positions along the tie rod.

5. In a weft replenishing loom having a lay and a shuttle with a weftparter element, a magazine, a tie rod forming part of the magazine, abracket fixed with respect to the tie rod, a holder capable of assuminga, plurality of vertical positions with respect to and supported by thebracket, and a second cutter element mounted removably with respect tothe holder.

6. In a weft replenishing loom having a lay and a shuttle with a weftparter element, a magazine, a tie rod forming part of the magazine, abracket fixed with respect to the tie rod, a holder capable of assuminga plurality of vertical positions with respect to and supported by thebracket, and a second cutter element mounted on the holder.

7. In a weft replenishing loom havin a shuttle and a cutter elementcarried there y, a second cutter element to coact with the element onthe shuttle as the latter moves, a support for the second elementincluding a vertical stud, and a fixed carrier means having a verticalhub to receive and hold the stud in any one of a plurality of verticalpositions relatively to the axis of the shuttle.

8. In a weft replenishing loom havin a shuttle and a cutter elementcarried there i y, a second cutter element-t0 coact with the element onthe shuttle as the latter moves, a bracket above the lay and fixed withrespect to the loom, a holder for the second cutter, and means defininga sliding connection between the holder and bracket rendering the-secondcutter capable of assuming a pluralityof vertical positions with respectto the axis of the shuttle.

9. In a weft replenishing loom having a shuttle and a cutter elementcarried thereby, a second cutter element to coact with the element onthe shuttle as the latter moves, a pair of spaced tie rods fixed withrespect to the loom and located above the lay, a bracket supported bythe tie rods, and a supporting connection between the bracket and thesecond named element with respect to which the latter is movable whenengaging the element on the shuttle.

10. In a weft replenishing loom having a shuttle and a cutter elementcarried thereby, a second cutter element to coact With the element onthe shuttle as the latter moves, a pair of spaced tie rods fixed withrespect to the loom and located above the lay, a bracket supported bythe tie rods, and a supporting connection between the bracket and thesecond named element with respect to which the latter is movable whenengaging the element on the shuttle, said bracket having removable capsone of which engages one of the tie rods on one side of the bracket andthe other of which engages the other tie rod on the opposite side of thebracket.

In testimony whereof I have hereunto affixed my signature.

OSCAR V. PAYNE.

